TY  - JOUR
AU  - Poletanović, Bojan
AU  - Dragaš, Jelena
AU  - Ignjatović, Ivan
AU  - Komljenović, Miroslav
AU  - Merta, Ildiko
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2172
AB  - Two alkali-activated mortars with different solid prime materials were analysed. The first mortar contained fly ash, had lower density, higher water absorption, lower compactness, lower compressive strength, similar flexural strength and was less brittle than the second one with fly ash + slag.
The addition of hemp fibres slightly changed the mortars’ density, water absorption, compressive and flexural strength, however significantly increased its energy absorption capacity.
The initially more brittle matrix exhibited significantly higher relative toughness increase. The smoother and less porous fibre/matrix interface assured through numerous fibre/matrix contact points a more optimal fibre/matrix interfacial bond- and frictional stress transfer.
PB  - Elsevier Ltd.
T2  - Construction and Building Materials
T1  - Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars
SP  - 119677
VL  - 259
DO  - 10.1016/j.conbuildmat.2020.119677
ER  - 

@article{
author = "Poletanović, Bojan and Dragaš, Jelena and Ignjatović, Ivan and Komljenović, Miroslav and Merta, Ildiko",
year = "2020",
abstract = "Two alkali-activated mortars with different solid prime materials were analysed. The first mortar contained fly ash, had lower density, higher water absorption, lower compactness, lower compressive strength, similar flexural strength and was less brittle than the second one with fly ash + slag.
The addition of hemp fibres slightly changed the mortars’ density, water absorption, compressive and flexural strength, however significantly increased its energy absorption capacity.
The initially more brittle matrix exhibited significantly higher relative toughness increase. The smoother and less porous fibre/matrix interface assured through numerous fibre/matrix contact points a more optimal fibre/matrix interfacial bond- and frictional stress transfer.",
publisher = "Elsevier Ltd.",
journal = "Construction and Building Materials",
title = "Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars",
pages = "119677",
volume = "259",
doi = "10.1016/j.conbuildmat.2020.119677"
}

Poletanović, B., Dragaš, J., Ignjatović, I., Komljenović, M.,& Merta, I.. (2020). Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars. in Construction and Building Materials
Elsevier Ltd.., 259, 119677.
https://doi.org/10.1016/j.conbuildmat.2020.119677

Poletanović B, Dragaš J, Ignjatović I, Komljenović M, Merta I. Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars. in Construction and Building Materials. 2020;259:119677.
doi:10.1016/j.conbuildmat.2020.119677 .

Poletanović, Bojan, Dragaš, Jelena, Ignjatović, Ivan, Komljenović, Miroslav, Merta, Ildiko, "Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars" in Construction and Building Materials, 259 (2020):119677,
https://doi.org/10.1016/j.conbuildmat.2020.119677 . .

TY  - CONF
AU  - Simonova, Hana
AU  - Kucharczykova, Barbara
AU  - Topolar, Libor
AU  - Kersner, Zbynek
AU  - Merta, Ildiko
AU  - Dragaš, Jelena
AU  - Ignjatović, Ivan
AU  - Komljenović, Miroslav
AU  - Nikolić, Violeta
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/970
AB  - The aim of this paper is to quantify particularly fracture properties of selected types of mortars prepared with an alkali activated binder and hemp fibers. The main attention is focused on evaluation of three-point bending fracture tests of prismatic specimens with an initial central edge notch made of alkali activated fly ash mortars. The load versus crack mouth opening displacement (F-CMOD) diagrams were recorded during the fracture tests and subsequently evaluated using the Double-K fracture model. This model allows the quantification of two different levels of crack propagation: initiation, which corresponds to the beginning of stable crack growth, and the level of unstable crack propagation. The course of fracture tests was also monitored by acoustic emission method.
C3  - Ecf22 - Loading and Environmental Effects On Structural Integrity
T1  - Crack initiation of selected geopolymer mortars with hemp fibers
EP  - 583
SP  - 578
VL  - 13
DO  - 10.1016/j.prostr.2018.12.095
ER  - 

@conference{
author = "Simonova, Hana and Kucharczykova, Barbara and Topolar, Libor and Kersner, Zbynek and Merta, Ildiko and Dragaš, Jelena and Ignjatović, Ivan and Komljenović, Miroslav and Nikolić, Violeta",
year = "2018",
abstract = "The aim of this paper is to quantify particularly fracture properties of selected types of mortars prepared with an alkali activated binder and hemp fibers. The main attention is focused on evaluation of three-point bending fracture tests of prismatic specimens with an initial central edge notch made of alkali activated fly ash mortars. The load versus crack mouth opening displacement (F-CMOD) diagrams were recorded during the fracture tests and subsequently evaluated using the Double-K fracture model. This model allows the quantification of two different levels of crack propagation: initiation, which corresponds to the beginning of stable crack growth, and the level of unstable crack propagation. The course of fracture tests was also monitored by acoustic emission method.",
journal = "Ecf22 - Loading and Environmental Effects On Structural Integrity",
title = "Crack initiation of selected geopolymer mortars with hemp fibers",
pages = "583-578",
volume = "13",
doi = "10.1016/j.prostr.2018.12.095"
}

Simonova, H., Kucharczykova, B., Topolar, L., Kersner, Z., Merta, I., Dragaš, J., Ignjatović, I., Komljenović, M.,& Nikolić, V.. (2018). Crack initiation of selected geopolymer mortars with hemp fibers. in Ecf22 - Loading and Environmental Effects On Structural Integrity, 13, 578-583.
https://doi.org/10.1016/j.prostr.2018.12.095

Simonova H, Kucharczykova B, Topolar L, Kersner Z, Merta I, Dragaš J, Ignjatović I, Komljenović M, Nikolić V. Crack initiation of selected geopolymer mortars with hemp fibers. in Ecf22 - Loading and Environmental Effects On Structural Integrity. 2018;13:578-583.
doi:10.1016/j.prostr.2018.12.095 .

Simonova, Hana, Kucharczykova, Barbara, Topolar, Libor, Kersner, Zbynek, Merta, Ildiko, Dragaš, Jelena, Ignjatović, Ivan, Komljenović, Miroslav, Nikolić, Violeta, "Crack initiation of selected geopolymer mortars with hemp fibers" in Ecf22 - Loading and Environmental Effects On Structural Integrity, 13 (2018):578-583,
https://doi.org/10.1016/j.prostr.2018.12.095 . .